Air-cooling system.



G. E. ALBIN.

AIR COOLING SYSTEM.

APIHCAIION FILED AUG.3I. 1911.

1,267,160. Patented May 21.1918.

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Specification of Letters Patent.

Patented May 21, 191

a lication ma August 31, 1917. Serial No. 189,219.

To all whom may concern:

Be it known that I, Gno'non E. ALBIN, a

citizen of the United States, residing at Cornish, in the county of Jefierson and State of Oklahoma, have invented new and useful Im rovements in Air-Cooling Systems, of w ich the following is a specification.

This invention relates to air cooling systems for internal combustion engines, the object in view being to dispense with the circulating water now commonly used and also dispense with the usual fan, substituting therefor means for forcing a strong blast or current of cool air through what are now water jackets of the cylinders of the engine. By employing the cooling system hereinafter described and by means of which only air is used for cooling purposes, all danger of freezing in cold weather is eliminated.

A further object of the invention is to provide cooling apparatus of such character, construction and arrangement, that said apparatus may be readily applied to the engines of motor vehicles already in use.

A further object of the invention is to so mount the fan and fan casing of the up paratus that the same is movable bodily toward and away from the fan shaft, being pressed away from the fan shaft by yield. able means, acting to keep the driving belt at a proper driving tension.

With the above and other objects in view, the invention onsists in the novel construc tion, combinat on and arrangement of parts, herein described, illustrated and claimed.

Inthc accompanying drawin s:-

Figure 1 is a view partlyin side elevation and partly in section showing the cooling apparatus in its applied relation to the internal combustion engine of a motor vehicle. Fig. 2 is a front elevation of the same partly broken away.

Referring to the drawings A designates a multiple cylinder internal combustion engine which is conventionally shown and mountedin the usual position under the hood of a motor vehicle, the latter being designated generally at B. As shown, the engine comprises the usual Water outlet manifold 1, and upper water connections 2, the latter communicating with the upper portion of the radiator 3. 4 desi ates the usual bottom water connection. t is to be understood however that no water is used a continuous spiral blade.

under the improved system, the parts 1, 2 and 4 being used as air conduits.

In carrying out the present invention, I employ an air blast fan designated generally at U, the same comprising a fan proper designated at 5 in the form of anArchimedean screw or in other words a fan having The fan 5 is mounted in a casing comprising a main cylindrical portion 6 having an internal,

diameter slightly greater than the external diameter of the fan 5. The casing also comprises a frusto-conical or tapering dis charge portion 7 to which #lu: usual flexible connection or hose 1 is medv The contracting end portion 2 he casing forms a velocity increasin 05w: neyoml the end of the {an 5', prices a iral shaft s which is 9 in the casing snail; projects be yond one end of the casing whereit' has fast thereon a small pulls-1y or belt wheel 10. Around the wheel 10 passes a drivin belt 11, the latter also passing around and eing driven b a belt pulley 12 fast on the usual fan sha 13 of the motor. From the fan Policy 14 with which the engine is already provided, a second belt 15 passes around the lower fan pulley 16 which is also found on the present motor. Thus the shaft 8 0f the fan 5 is driven from the engine sha' 17.

The fan casing i mounted for movement toward and away from the shaft 13 'by empioying a supporting arm 18 which is connected by a pivot joint 19 to a bracket 20 secured to one side of the en inc as indi cated in the drawings.- At isomer end, the arm 17 is shown as having a'band or strap :20 which encircles and carries the fr "1 casing 6. A sprin 21 is into osed between the arm 18 and a ug or brac et 22 secured in any suitable Way to the engine frame. Said spring 21 serves to press the arm 18 and consequentl the casing 6 away from the shaft 13' an thereby keeps the belt 11 tight, compensating for any stretchingiuof said belt.

From the foregoing description taken i connectiofiwith the accompanying draw ings it will novv"i e seen that by arranging a high speed blast fan in the position shown and in the relation to the engine specified, and by providing the fan casing with a velocity increasing. chamber, a stron and continuous blast or current of air is orced through all of the jackets of the cylinders,

thus maintaining the cylinder walls in a cool condition and at the same time eliminating all danger of freezing in col weather. No ad]ustment is required for the belt 11 as it is maintained under the proper tension by means of the spring 21. Furthermore the air cooling apparatus ma be used in conjunction with en 'nes alrea y in use. The apparatus is also a apted to be installed at the time of the manufacture of the motor vehicle.

I claim 1. The combination with an internal combustion engine, of an air blast fan casing embodying a cylindrical portion and a frusto-conicalyelocity increasing chamber an air blast fan rotatable in said casing and comprising a central shaft journaled 1n the fan casing, a pivotally mounted support carryin said fan and its casing, belt pulleys on the an shaft and the en 'ne shaft intermediate belt pulleys, and riving belt connections between said pulleys, the discharge L i copies of this patent may be obtained for end of the fan casing being flexibly connected with the 'ackets of the engine and yieldable means or ressin the casing support away from the an shaf t.

2. The combination with an internal com.- bustion engine, of an air blast fan embody ing a cylindrical portion and a frusto-conical velocity increasin chamber, an air blast fan rotatable in sai casing and comprising a central shaft journaled in the fan casing, belt pulleys on the fan shaft and the engine shaft, intermediate belt pulleys, driving belt connections between said pulleys, the discharge end of the fan casing being flexibly connected with the jackets of the engine, said fan casing being mounted for movement toward and. away from the engine, and yieldable means interposed be tween the fan casing and engine and acting as a bolt tightener.

In testimony whereof I aiiix my signature.

GEORGE E. ALBIN.

five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

